Low cost, real time GPS tracker with advanced features Real time tracking, as fast as every seven seconds with customized setting Bing and Google maps with option of birds eye view Geo fencing alerts (when unit enters or leaves designated area) Geo-elapsed time alert (when unit stays in particular location longer than allocated time) As with any real time GPS tracker, monthly service fees are applicable. Plans range from $10.00 to $25.00 monthly, per device, without any service agreement.